CN108730665A - A kind of muffler assembly - Google Patents
A kind of muffler assembly Download PDFInfo
- Publication number
- CN108730665A CN108730665A CN201710248060.9A CN201710248060A CN108730665A CN 108730665 A CN108730665 A CN 108730665A CN 201710248060 A CN201710248060 A CN 201710248060A CN 108730665 A CN108730665 A CN 108730665A
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- Prior art keywords
- auxiliary section
- interconnecting piece
- extension
- extended segment
- adapter
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Exhaust Silencers (AREA)
Abstract
The present invention discloses a kind of muffler assembly, muffler assembly includes at least muffler, the first connecting tube and first adapter, the first end of first connecting tube is welded and fixed with muffler, the second end of first connecting tube is welded and fixed with first adapter, the inner cavity of first adapter can be connected to by the first connecting tube with the inner cavity of muffler, the muffler assembly of the present invention is provided with first adapter, is conducive to being welded and fixed for muffler assembly and follow-up connecting line.
Description
【Technical field】
The invention belongs to refrigeration technology fields, relate generally to a kind of muffler applied to refrigeration system.
【Background technology】
Muffler is the common basic element of character in refrigeration system, can eliminate fluid and flow the noise brought, muffler one
As be made using the copper material for being easy welding, but copper material higher price, thus replace copper material manufacture new using steel recently
Cause, to reduce production cost, but steel and copper material welding difficulty are higher, are unfavorable for muffler and the follow-up pipeline of refrigeration system
Installation, thus need to take certain measure to reduce installation difficulty.
【Invention content】
The purpose of the present invention is to provide a kind of muffler assemblies, advantageously reduce muffler assembly and other pipeline fittings
Installation difficulty.
To achieve the above object, it adopts the following technical scheme that：A kind of muffler assembly includes at least muffler, the first company
It takes over and first adapter, the first adapter includes at least the first auxiliary section, the first adapter further includes first end
Mouth and second port, the first port are set to one end of first auxiliary section, and the muffler includes at least first and connects
Socket part and second connecting portion, the first connecting portion are located at the side of the muffler, and the second connecting portion is located at described disappear
The first end of the other side of sound device, first connecting tube includes third interconnecting piece, and the second end of first connecting tube includes
4th interconnecting piece, the third interconnecting piece are welded and fixed with the first connecting portion, and the 4th interconnecting piece is matched with described first
Conjunction portion is welded and fixed, and the axial direction in first auxiliary section, first auxiliary section is located substantially at the 4th interconnecting piece
End wall side, the second port can be connected to by first connecting tube with the inner cavity of the muffler.
Compared with prior art, muffler assembly of the invention setting first adapter, be conducive to muffler with it is other
The installation of pipeline is fixed.
【Description of the drawings】
Fig. 1 is a kind of schematic diagram of the first embodiment of muffler assembly；
Fig. 2 is muffler assembly shown in Fig. 1 along the schematic cross-section of the axis of A-A；
Fig. 3 is the enlarged diagram of the first embodiment in Ith area of muffler assembly in Fig. 2；
Fig. 4 is the enlarged diagram of the second embodiment in Ith area of muffler assembly in Fig. 2；
Fig. 5 is the enlarged diagram of the 3rd embodiment in Ith area of muffler assembly in Fig. 2；
Fig. 6 is the enlarged diagram of the fourth embodiment in Ith area of muffler assembly in Fig. 2；
Fig. 7 is the first embodiment schematic diagram of the first connecting tube；
Fig. 8 is the second embodiment schematic diagram of the first connecting tube；
Fig. 9 is the 3rd embodiment schematic diagram of the first connecting tube；
Figure 10 is the enlarged diagram of the first embodiment in IIth area of muffler assembly in Fig. 5；
Figure 11 is the enlarged diagram of the second embodiment in IIth area of muffler assembly in Fig. 5；
Figure 12 is the structural schematic diagram of the first embodiment of first adapter；
Figure 13 is the structural schematic diagram of the second embodiment of first adapter；
Figure 14 is the dimensional structure diagram of the 3rd embodiment of first adapter；
Figure 15 is the schematic diagram of the fourth embodiment of first adapter；
Figure 16 is the assembling schematic diagram of first adapter and the first embodiment of the first connecting tube；
Figure 17 is the assembling schematic diagram of first adapter and the second embodiment of the first connecting tube；
Figure 18 is the assembling schematic diagram of first adapter and the 3rd embodiment of the first connecting tube；
Figure 19 is the assembling schematic diagram of first adapter and the fourth embodiment of the first connecting tube.
【Specific implementation mode】
In order to make those skilled in the art more fully understand the technical solution of the embodiment of the present invention, below in conjunction with the accompanying drawings and
Specific implementation mode is described in further detail.It please refers to Fig.1 and Fig. 2, a kind of muffler assembly includes at least muffler
400, the first connecting tube 100 and first adapter 200, during muffler 400, the first connecting tube 100 and first adapter 200 are
Hollow structure, muffler 400, the first connecting tube 100 and first adapter 200 are welded and fixed, and the inner cavity of first adapter 200 can
It is connected to the inner cavity of muffler 400 by the inner cavity of the first connecting tube.In the present embodiment, muffler 400, the first connecting tube 100
Can be different from 200 material of first adapter, the material of muffler 400 is identical with the material of the first connecting tube 100, and such as the two is equal
It is stainless steel, the material of first adapter 200 can be the relatively easy material of welding, such as copper or red copper, in other implementations
The material of scheme, three can also be identical, if three is copper or red copper.Muffler 400 includes flat part 410, contraction section
420, first connecting portion 430 and second connecting portion 440, the flat part of muffler 400, contraction section, second connecting portion 440 and first
Interconnecting piece 430 can be integral structure or by being welded and fixed, and contraction section 420 is from flat part 410 towards first connecting portion 430
It shrinks and extends with second connecting portion 440, and the diameter of contraction section 420 tapers into or great-jump-forward becomes smaller；First connecting portion 430
420 straight extension of contraction section from 410 side of flat part, contraction section 420 of the second connecting portion 440 from 410 other side of flat part
The diameter of straight extension, first connecting portion 430 and second connecting portion 440 remains unchanged or substantially unchanged, wherein is located at noise reduction
The first connecting portion 430 of 400 both sides of device and the diameter of second connecting portion 440 can be identical, can not also be identical；First connecting portion
430 and the radial section of second connecting portion 440 can be the regular shapes such as circle, rectangle, ellipse, can also be other irregular
Shape.First connecting portion 430 further includes the first communication port (not shown) being connected to the inner cavity of muffler 400, second connecting portion
440 further include the second communication port (not shown) being connected to the inner cavity of muffler 400.First connecting tube 100 includes first end, the
Two ends and the first stage casing 120, the first stage casing are set between the first end of the first connecting tube and the second end of the first connecting tube, the
The first end of one connecting tube can be connected to the second end of the first connecting tube by the first stage casing, and the first end of the first connecting tube is extremely
Include third interconnecting piece 130 less, the second end of the first connecting tube includes at least the 4th interconnecting piece 111, third interconnecting piece 130 and the
The inner wall of one interconnecting piece 430 is welded and fixed, and third interconnecting piece 130 and the first stage casing 120 are located substantially at first connecting portion end wall
Both sides.
Referring to Fig. 6, first connecting portion 430 includes First portion 136 and second portion 135, second portion 135 and first
The inner wall of interconnecting piece 430 is welded and fixed.Specifically, the outer diameter in First portion 136 is less than the outer diameter in second portion 135, in other words,
The axis of First portion 136 opposite second portion 135 towards first connecting portion 430 is recessed；In the axial direction of first connecting portion,
Second connecting portion is closed in portion of with respect to second, First portion, and the length in First portion is far smaller than the length in second portion.First
The respective inner walls of platform portion 136 and first connecting portion constitute the holding tank for placing solder, and when welding, solder is positioned over First portion
Between 136 and the respective inner walls of first connecting portion, be conducive to the fixation of solder and solder melt after flow into second portion 135 and the
Between the respective inner walls of one interconnecting piece 430.
Please refer to Fig. 3-Fig. 5, the outer diameter of third interconnecting piece 130 is roughly equal or the outer diameter of third interconnecting piece 130 substantially
Unchanged, the outer wall and the inner wall of first connecting portion 430 of third interconnecting piece 130 are welded and fixed.Specifically, first connecting portion 430
Including third platform portion 432 and the 4th portion 431, the 4th portion 431 and the outer wall of third interconnecting piece 130 are welded and fixed；Third platform
The axisymmetrical of first connecting portion is shown greatly in portion and the 4th portion, and the internal diameter in third platform portion 432 is less than the interior of the 4th portion 431
Diameter, in other words, axis protrusion of opposite 4th portion 431 of third platform portion 432 towards first connecting portion, wherein third platform portion can
Can also be the salient point, pillar or bulge loop with the axisymmetrical of first connecting portion 120 to be continuous protrusion.In the first connection
The axial direction in portion, at least partly the 4th portion are between third platform portion and third interconnecting piece, the 4th portion 431 in other words
Length is more than the length of third interconnecting piece 130, and third platform portion 432 is set to port and the second connection of third interconnecting piece in other words
Between portion 440.In this way, the holding tank for placing solder is constituted between third platform portion 432 and the port of third interconnecting piece 130, weldering
When connecing, solder is squeezed by the end wall of third interconnecting piece 130 and third platform portion 432 and is fixed, and is conducive to the fixation and weldering of solder in this way
Material flows into after melting between third interconnecting piece 130 and third platform portion 432, and then is welded and fixed the company of third interconnecting piece 130 and first
Socket part 430；The internal diameter in third platform portion is less than the internal diameter in the 4th portion, it is possibility to have effect prevents the solder of liquid from flowing into muffler
Contraction section 420 is conducive to save solder and enhances weld strength.Referring to Fig. 4, third interconnecting piece 130 further includes first folded over
Portion 131, the first folded over portion 131 are set to the end of third interconnecting piece 130, and the first folded over portion 131 is towards first connecting portion 430
Axis extends, substantially vertical with the axis of first connecting portion, it is recognised that first port is set to the first folded over portion 131.Setting
First folded over portion 131 can prevent the inner wall of liquid solder inflow third interconnecting piece 130 in welding.Referring to Fig. 5, first connects
Socket part 430 can also include portion 431 of 432, the 4th, third platform portion and the 5th portion 433, portion 431 of 432, the 4th, third platform portion
Show 430 axisymmetrical of first connecting portion greatly with the 5th portion 433, in the axial direction of first connecting portion 430, the 5th portion
433 between third platform portion 432 and the 4th portion 431, and the length in the 4th portion 431 is greater than or equal to third interconnecting piece 130
Length or the 5th portion to the end wall of first connecting portion distance be greater than or equal to third interconnecting piece 130 length；5th
The internal diameter in platform portion is more than the internal diameter in third platform portion and/or the 4th portion, and the 5th portion is with respect to third platform portion and the 4th in other words
Portion is recessed with the axis far from first connecting portion.Wherein, the geometric dimension in the 5th portion 433 is closed with solder compatible is placed.4th
Platform portion 431 is welded and fixed with third interconnecting piece 130, it is recognised that in the axial direction of first connecting portion 430, third platform portion 432
Between the port of third interconnecting piece and second connecting portion 440, and 432 relative proximity third interconnecting piece 430 of third platform portion
Port.
Referring to Fig. 7, the second end of the first connecting tube 100 includes the 4th interconnecting piece 111 and the first contraction flow region 112, first
The third interconnecting piece 130 of 112 the first connecting tube of relative proximity of contraction flow region, the 4th interconnecting piece 111 are relatively distant from the first connecting tube
Third interconnecting piece 130.The diameter of 4th interconnecting piece is more than the diameter in the first stage casing, and the first contraction flow region 112 is from 120 court of the first stage casing
Extend to the 4th interconnecting piece 111, and diameter increases, the diameter of the first contraction flow region is from the 4th interconnecting piece direction first in other words
Diameter is gradually reduced when section 120 extends；In other embodiment, the first contraction flow region 112 can also be with the axis of the 4th interconnecting piece 111
Line is vertical, and saltus step occurs for the diameter in the first stage casing 120 to the 4th interconnecting piece diameter in other words.Please refer to Fig.1 4 and Figure 16, first
Adapter 200 includes the first auxiliary section 230 and the first extension 210, and the first extension 210 is set to the one of first adapter
End, the first extension 210 is the extension of the first auxiliary section 230 in other words, and the inner cavity of the first extension is interior with the first auxiliary section
Chamber is connected to, and first adapter further includes first port and second port, and first port is set to the first auxiliary section, and second port is set
It is placed in the first extension.Specifically, the first extension 210 from the first auxiliary section 230 with the axis far from first auxiliary section 230
Direction extends, and the first extension 210 is prolonged from the first auxiliary section 230 with the radial direction for being roughly parallel to the first auxiliary section in other words
It stretches, the first extension 210 is substantially vertical with the axis direction of the 4th interconnecting piece 111.The second end and first of first connecting tube 100
Adapter 200 is welded and fixed, and the mode of welding can be soldering, flame welding or stove weldering.Specifically, the 4th interconnecting piece 111 with
First auxiliary section 230 is interference fitted, and the first auxiliary section 230 stretches into the 4th interconnecting piece 111, due to the presence of the first contraction flow region 112,
First auxiliary section 230 and the first contraction flow region 112 contradict, and the first auxiliary section 230 and the inner wall of the 4th interconnecting piece 111 are welded and fixed,
The end wall of first extension 210 and the 4th interconnecting piece 111 is welded and fixed.Axial direction in the first auxiliary section, the first auxiliary section
230 and first extension 210 be located substantially at the end wall both sides of the 4th interconnecting piece 111, at least the first contraction flow region is located substantially at first
The side of port, the 4th interconnecting piece substantially with positioned at the other side of first port.It is recognised that the radial direction of the first auxiliary section 230
Section is roughly the same with the shape of radial section of the 4th interconnecting piece 111；The internal diameter of first auxiliary section is roughly equal, and first
The axis of auxiliary section substantially axis, when the straight section of the connecting pin of the follow-up pipeline welded with muffler assembly is relatively short,
Need the straight section to the corresponding connecting pin of follow-up pipeline to lengthen, but due to the first auxiliary section be straight-run of pipe, just without pair
Follow-up pipeline is transformed, and can make the easier for installation of muffler assembly.The outer diameter of first extension 210 is matched more than first
The outer diameter in conjunction portion 230, the internal diameter of the first extension can be greater than or equal to the internal diameter of the first auxiliary section.In the present embodiment, first
The outer diameter of extension 210 is greater than or equal to the outer diameter of the 4th interconnecting piece 111.The first extension 210 is arranged in muffler assembly, not only
The depth that the 4th interconnecting piece is goed deep into the first auxiliary section can be limited, the end wall of the first extension and the 4th interconnecting piece can also be reduced
Gap, to reduce the bare area of solder, be conducive to reduce different material between potential difference, reduce corrosion.In addition, due to
One extension 210 is approximately perpendicular to the extension of the first connector axis direction, due to the interval of the first extension, when secondary welding
Solder when solder and primary welding does not contact, and can effectively reduce the potential difference between different material and the corrosion that generates.
5 and Figure 18 is please referred to Fig.1, the first extension 210 includes the first extended segment 213, and the first extended segment 213 is straight tube,
The first extended segment 213 is from the straight extension in the first auxiliary section, the i.e. diameter of the first auxiliary section 230 and the first extension 210 in other words
It is roughly equal, and the axis of the first auxiliary section 230 and the axis of the first extended segment 213 substantially overlap；First auxiliary section and the
The inner wall of four interconnecting pieces is welded and fixed, and the first auxiliary section is located substantially at the side of the 4th interconnecting piece end wall, and the first extended segment 213 is big
It causes positioned at the other side of the 4th interconnecting piece end wall, the inner cavity of the first extended segment is connected to the inner cavity of the first auxiliary section, second port
It is set to the first extended segment.It, can also be according to being bent into different shapes in addition, the first extension 210 of first adapter 200
Shape, as shown in figure 12, such as the first extension 210 further includes the first extended segment 213, the second extended segment 212 and third extended segment
211, second port is set to third extended segment, and the first extended segment 213 shows greatly the axis of the first auxiliary section from the first auxiliary section
Direction extends, and the length of the first extended segment 213 is greater than or equal to the length of the first auxiliary section, and the second extended segment 212 is prolonged from first
Section 213 is stretched with arc central axis smoothly to extend, third extended segment 211 from the 212 straight extension of the second extended segment, it is recognised that
First extension can also be the combination of multiple curved segments and multiple straight sections, but the extended segment where second port should be straight section.Disappear
When sound device assembly is welded with other pipelines, if the straight section of the follow-up corresponding connecting pin of pipeline is shorter, need to follow-up pipeline phase
The straight section of connecting tube is answered to be lengthened, but since the tail end of the first extension includes at least straight-run of pipe, just without to follow-up
Pipeline is transformed, and can make the easier for installation of muffler assembly.3 and Figure 19 is please referred to Fig.1, third extended segment 211
Diameter is more than the diameter of the first extended segment, and the first extended segment 213 is from the 230 straight extension of the first auxiliary section, and first extends in other words
The outer diameter and the outer diameter of the first auxiliary section 230 of section are roughly equal；Second extended segment 212 is from the first extended segment towards third extended segment
211 extend, and the diameter of the axial direction in the first auxiliary section 230, the second extended segment 212 gradually increases；Third extended segment 211 is certainly
Second extended segment, 212 straight extension, in other words, the first extended segment are connect with the second extended segment diameter relatively small end, and third is prolonged
Section 211 is stretched to connect with the second extended segment diameter relatively big end.The 4th interconnecting piece 111 and the 4th company is stretched into first auxiliary section 230
The inner wall of socket part is welded and fixed, and diameter when extending towards the first stage casing 120 due to the first contraction flow region 112 is gradually reduced, favorably
In the depth for limiting the first auxiliary section of the first contraction flow region 112 insertion；Extend in addition, the second extended segment is shunk, is conducive to muffler
Component limits the insertion depth of follow-up pipeline when being welded with follow-up pipeline.
First extension further includes the first linkage section (not shown), and the outer diameter of the first extended segment is more than the outer of the first auxiliary section
Diameter, the first linkage section extend from the first auxiliary section towards the first extended segment, the extending direction of the first linkage section and the first auxiliary section
Axis direction it is substantially vertical, the end wall of at least partly the first linkage section and the 4th interconnecting piece be welded and fixed；Or first connect
It includes the first segmental arc (not shown) and the second segmental arc (not shown) to connect section, and the first segmental arc is shown greatly from the first auxiliary section far from first
The direction of the axis of auxiliary section extends, and the direction that the second segmental arc shows greatly neighbouring first auxiliary section axis from the first segmental arc extends to
First extended segment, the first linkage section show greatly the axisymmetrical of the first auxiliary section, at least partly the first segmental arc and the 4th interconnecting piece
End wall be welded and fixed.
7 are please referred to Fig.1, first adapter 200 can also only include the first auxiliary section 230, and first port is set to first
One end of 230 the first contraction flow region of relative proximity of auxiliary section, second port are set to the first auxiliary section 230 and are relatively distant from the first contraction
The one end in portion, the first auxiliary section 230 and the inner wall of the 4th interconnecting piece 111 are welded and fixed, and the first auxiliary section is located substantially at the 4th company
The side of socket part end wall.
The second end of first connecting tube can also only include the 4th interconnecting piece 111, as shown in figure 8, the 4th interconnecting piece 111 is certainly
First stage casing 120 extends, and the outer diameter of the 4th interconnecting piece 111 and the first stage casing outer diameter are roughly equal.First adapter 200 includes the
One auxiliary section, the second contraction flow region (not shown) and the first extension, wherein the axial direction in the first auxiliary section, second shrinks
Portion is set between the first auxiliary section and the first extension, and the internal diameter of the first auxiliary section is more than the internal diameter of the first extension, and second
Contraction flow region extends from the first auxiliary section towards the first extension, and the internal diameter of the second contraction flow region is gradually reduced, the 4th interconnecting piece
111 are welded and fixed with the inner wall of the first auxiliary section.Since the diameter of the second contraction flow region is gradually reduced, the second contraction flow region is conducive to limit
The length for stretching into the first auxiliary section of the 4th interconnecting piece is made, and then is conducive to be welded and fixed.The axis of first extension is straight line,
And its outer diameter is roughly equal, in other words, the first extension substantially straight tube.The straight-tube portion of the connecting pin of follow-up pipeline is opposite
When shorter, the first extension is straight tube, is conducive to being welded and fixed for follow-up pipeline and the first extension, can make muffler assembly
It is easier for installation.
5- Figure 19 is please referred to Fig.1, the first auxiliary section 230 includes the first protrusion 232 and the first smooth area 231, is matched first
The circumferential direction in conjunction portion 230, the first protrusion 232 and the first smooth area 231 are arranged at the outer wall interval of the first auxiliary section 230, the
The extending direction of one protrusion 232 and the axis direction of the 4th interconnecting piece 111 are roughly the same, wherein the quantity of the first protrusion is the
The integral multiple of four interconnecting piece internal diameter units；In the radial direction of the 4th interconnecting piece 111, the first protrusion 232 opposite first is smooth
Area 231 is directed away from the direction protrusion in the center of circle, and the diameter of the first protrusion 232 is more than the straight of adjacent first smooth area 231 in other words
Diameter, specifically, the radial difference substantially 0.05mm-0.15mm of the first protrusion 232 and the first smooth area 231, first is convex in other words
It is 0.05mm-0.15mm that 232, which are played, with the relative height differential of the first smooth area 231, wherein first raised 232 and the 4th interconnecting piece
111 internal partial wall is interference fitted, the first smooth area 231, adjacent first protrusion 232 between adjacent first protrusion 232 and phase
The inner wall of the 4th interconnecting piece 111 is answered to constitute the first diversion cavity, when welding, the first diversion cavity is the flow channel of liquid solder, weldering
After connecing, by the fill solder after curing, the gap between the 4th interconnecting piece 111 and the first auxiliary section 230 passes through the first diversion cavity
Solder seals；It is recognised that the first protrusion 232 of the first auxiliary section 230 setting and the first smooth area 231, thus constitute the 4th and connect
The first diversion cavity between the inner wall of socket part 111 and the outer wall of the first auxiliary section 230, the first diversion cavity and the receiving for placing solder
Slot is connected to, and when welding, the solder that is set in holding tank can be flowed after melting by the first diversion cavity, and last solder is distributed in
Between the inner wall of 4th interconnecting piece 111 and the outer wall of the first auxiliary section 230, the 4th interconnecting piece 111 and the first auxiliary section 230 pass through
Solder is welded and fixed, the final welding for realizing muffler and the first connecting tube.It is recognised that the first auxiliary section 230 and the 4th connects
After the completion of socket part 111 is welded, the first diversion cavity is filled with solder.In addition, the outer diameter of the first protrusion 232 is slightly larger than the 4th interconnecting piece
111 internal diameter, the inner wall interference fit of the first protrusion 232 and the 4th interconnecting piece 111, when welding, is conducive to first adapter 200
With being relatively fixed for the 4th interconnecting piece 111.
In the present embodiment, the first protrusion 232 extends from the port of the first auxiliary section 230 towards the first stage casing 120, the 4th
The extension track of the axial direction of interconnecting piece 111, the first protrusion 232 can be straight line, can also be curve, the first protrusion 232
Can be extended continuously, can also be interrupted extension, adjacent first protrusion 232 can be parallel, can also gradually converge but not phase
It hands over, the end of the 4th interconnecting piece is flow to ensure the solder of liquid from holding tank；Adjacent first protrusion 232 can be with equidistantly distributed
It, can not also equidistantly distributed and the first auxiliary section 230 in the first auxiliary section 230.First protrusion 232 can also be from the first stage casing
120 extend towards the port of the first auxiliary section 230, but are not contacted with the port of the first auxiliary section 230, and the first smooth area 231 is not
Only include the part between adjacent first protrusion 232, also the port including the first auxiliary section 230 is between the first protrusion 232
First auxiliary section 230.Similarly, the first protrusion 232 can also prolong from the port of the first auxiliary section 230 towards the first stage casing 120
It stretches, but non-intersecting with the first stage casing 120；First protrusion 232 can also be set to the port in the first stage casing 120 and the 4th interconnecting piece
Between, the first protrusion 232 is non-intersecting with the port in the first stage casing 120 and the 4th interconnecting piece.First protrusion 232 it is relatively short not
Process time only can be reduced, and ensure that the first diversion cavity in the circumferentially distributed of the 4th interconnecting piece, welding, it is flowable
Solder can circumferentially fill the gap between the first auxiliary section 230 and the 4th interconnecting piece 111, in other words the first auxiliary section 230
Circumferential direction be distributed with solder, with enhance leakproofness and improve muffler assembly mechanical strength.
In the other embodiment of the present embodiment, the first auxiliary section 230 includes that the first groove (not shown) and first are smooth
Area (not shown), the first groove are raised with respect to the axis of the first smooth area towards the 4th interconnecting piece, the week in the first auxiliary section 230
To direction, the first groove and the first smoothing interval are every setting, wherein the quantity of the first groove is the 4th interconnecting piece internal diameter units
Integral multiple.Specifically, several first grooves can be set between the first stage casing 120 and the port of the first auxiliary section 230, first
Groove extends from the first stage casing 120 towards the port of the first auxiliary section 230, the extending direction of the first groove and the first auxiliary section
230 axis direction is roughly the same, and similarly, the extension track of the first groove can be straight line or curve, adjacent first groove
It can be arranged in parallel, can also gradually converge non-intersecting, or gradually converge intersection, to ensure the solder of liquid from placing solder
Holding tank flow to the first stage casing 120；The first smooth area between first groove can match with the inner wall interference of the 4th interconnecting piece
It closes.It is recognised that liquid solder flows in the first groove when welding, final solder is covered with the 4th interconnecting piece 111 and first and matches
Between conjunction portion 230.First groove can also extend from the port of the first auxiliary section 230 towards the first stage casing 120, but not with first
Stage casing 120 contacts or the first groove can also extend from the port of the first auxiliary section 230 towards the first stage casing 120, and not with
First stage casing 120 contacts.3 are please referred to Fig.1, the part or the first groove between the first groove and the first stage casing 120 are matched with first
Part setting the first recess ring 233 between the port in conjunction portion 230, the first recess ring 233 intersect with the first groove, the first recess
The depth of ring 233 is roughly the same with the depth of the first groove, and setting the first recess ring 233 is conducive to the flowing of liquid solder,
So that the first auxiliary section 230 is welded and fixed in the circumferential inner wall with the 4th interconnecting piece 111, enhance weld strength and improves sealing
Property.Groove mentioned here refers to relatively flat skating area towards the recess of the axis of the first auxiliary section 230, and groove connects with the corresponding 4th
The channel for the solder flowing that the inner wall of socket part is formed.Similarly, the inner wall of the 4th interconnecting piece 111 can also include the first protrusion
The axis of (not shown) and the first smooth area (not shown), the first protrusion opposite first smooth area towards the 4th interconnecting piece is raised,
In the circumferential direction of the 4th interconnecting piece, the first protrusion and the first smoothing interval are every setting；In the axial direction of the 4th interconnecting piece,
One protrusion extends from the end wall 434 of the 4th interconnecting piece towards third platform portion 432, the extending direction and the 4th interconnecting piece of the first protrusion
Axis direction it is roughly the same, adjacent first protrusion is mutually parallel or gradually converges but non-intersecting, the adjacent first protrusion, adjacent
The outer wall of the first smooth area and corresponding first auxiliary section 230 between first protrusion constitutes the first diversion cavity or stream of solder flowing
Circulation passage；Or the 4th interconnecting piece 111 include the first smooth area and the first groove, end wall court of first groove from the 4th interconnecting piece
Extending to the second shrinking zone 112, the axis direction of the extending direction of the first groove and the first auxiliary section 230 is roughly the same, and first
Groove and the outer wall of corresponding first auxiliary section 230 constitute the channel of solder circulation.Or the 4th interconnecting piece 111 inner wall and first
Groove or protrusion is arranged simultaneously in the outer wall of auxiliary section 230, can also realize circulation passage and the solder solidification space of solder.
Fig. 7-Figure 11 is please referred to, the second protrusion 132 or the second groove is arranged (not in third interconnecting piece 130 in muffler assembly
Diagram), the second smooth area 133, wherein the setting of the second protrusion 132 or the second groove and the second smooth area and the first auxiliary section
Protrusion or groove and respective smoothed area it is roughly the same, be not described in detail.Similarly, first connecting portion can also be arranged second
The protrusion of protrusion or the second groove and the second smooth area, the second protrusion or the second groove and the second smooth area and the 4th interconnecting piece or
Groove and smooth area are roughly the same, are not described in detail.Similarly, the second groove is set to third interconnecting piece or the first portion of company
When, it can equally be set to the ring 135 that is substantially recessed with the second of the second texturearunaperpendicular.Muffler assembly can also include the simultaneously
Two protrusions, the second groove, the second smooth area, such as the second protrusion 132 and the second smooth area are set to first connecting portion, the second groove
And corresponding smooth area is set to third interconnecting piece, is not described in detail.
It is recognised that muffler assembly can also include the second connecting tube 300 and the second adapter (not shown), second connects
The first end of take over 300 is welded and fixed with second connecting portion, and the second end of the second connecting tube is welded and fixed with the second adapter, the
Two connecting tubes 300, the shape, structure of the second adapter and second connecting portion and the mode that is welded and fixed of three connect with above-mentioned first
Take over, the shape, structure of first adapter and first connecting portion and the assembling of three, welding manner it is roughly the same, repeat no more.
Muffler assembly can also also include only the second adapter, the shape and structure and first adapter of the second adapter
Said circumstances it is identical, the auxiliary section of the second adapter and the inner wall of second connecting portion are welded and fixed, and the two can be equally arranged
Protrusion or groove；The difference is that the second adapter include the second extension and the second folded over portion, wherein the second extension with
The shape and structure of first extension are identical, and the second folded over portion is set to the opposite end of the second extension, the folding in the second folded over portion
The extending direction of direction and the second extension is turned on the contrary, the second folded over portion can prevent solder from flowing into the second auxiliary section, it can also
When muffler assembly welds follow-up pipeline, the insertion depth of follow-up pipeline is limited, there is position-limiting action.
Referring to Fig. 1, muffler assembly can also include the second adapter (not shown), the second connecting tube 300 and third
Adapter 500, third adapter 500 are welded and fixed with second connecting portion, and first end and the third adapter of the second connecting tube weld
Connect fixation, the second end of the second connecting tube is welded and fixed with the second switching, wherein the second of the second adapter and the second connecting tube
End is welded and fixed mode, can see and be welded and fixed mode with reference to the first connecting tube and first adapter.Second connecting tube with
Second adapter material can be different, and the material of such as the second connecting tube can be stainless steel, and the material of the second adapter can be with
It is the relatively easy material of welding, such as red copper；The material of the two can also be identical, such as both for copper or red copper.
Muffler, first adapter, the second adapter, third adapter and connecting tube can be integrally molded, can also two
Secondary or multiple welding.If when using secondary welding or multiple welding, the fusing point of first time solder is more than the molten of second solder
Point, not influence first time welding effect when ensureing to weld for second, such as a kind of specific embodiment is tin bronze solder, weldering
Material fusing point can reach 1000 degree or so, all at 980 degrees Celsius or more as, can preferably meet the weldering of stainless steel and copper
Requirement is connect, in addition this solder melt point temperature is higher by common copper-based solder such as phos copper, even if adapter and subsequently needing pipe
Road is welded and fixed, since the solder melt point temperature of muffler assembly itself will be higher by 180 degree or so, so subsequent welding offsets
The influence of sound device assembly also can very little, when multiple welding is identical as the requirement of secondary welding.Welding side for muffler assembly
Formula can be stove weldering or soldering.Equipment for welding muffler assembly includes continuous tunnel furnace, vacuum welding chamber or gas shielded arc welding
Connect room or welding case etc..
Compared with prior art, muffler assembly of the invention includes at least first adapter, first adapter and noise reduction
The inner cavity of device is connected to, and adapter is arranged in muffler assembly, is conducive to being welded and fixed for muffler assembly and follow-up pipeline fitting,
Advantageous assembly is simplified.
It should be noted that：Above example is merely to illustrate the present invention and not limits technical side described in the invention
Case, such as "front", "rear", "left", "right", "upper", "lower" isotropy are defined, although this specification is with reference to above-mentioned reality
Example is applied to present invention has been detailed description, still, it will be understood by those of ordinary skill in the art that, technical field
Technical staff still the present invention can be combined with each other, be changed or equivalent replacement, and all do not depart from the present invention's
The technical solution of spirit and scope and its improvement should all be covered in scope of the presently claimed invention.
Claims (14)
1. a kind of muffler assembly includes at least muffler, the first connecting tube and first adapter, the first adapter is at least
Including the first auxiliary section, the first adapter further includes first port and second port, and the first port is set to described
One end of first auxiliary section, the muffler include at least first connecting portion and second connecting portion, and the first connecting portion is located at
The side of the muffler, the second connecting portion are located at the other side of the muffler, the first end of first connecting tube
Including third interconnecting piece, the second end of first connecting tube includes the 4th interconnecting piece, the third interconnecting piece and described first
Interconnecting piece is welded and fixed, and the 4th interconnecting piece is welded and fixed with first auxiliary section, the axial direction in first auxiliary section
Direction, first auxiliary section are located substantially at the side of the end wall of the 4th interconnecting piece, and the second port can pass through institute
The first connecting tube is stated to be connected to the inner cavity of the muffler.
2. muffler assembly according to claim 1, which is characterized in that the first adapter further includes the first extension
Portion, first extension are set to one end of the first adapter, and the second port is set to first extension,
The second port is connected to the inner cavity of first auxiliary section, the axial direction in first auxiliary section, and described first matches
Conjunction portion is located substantially at the side of the 4th interconnecting piece end wall, and first extension is located substantially at the 4th interconnecting piece end wall
The other side.
3. muffler assembly according to claim 1 or 2, which is characterized in that the second end of first connecting tube is also wrapped
Include the first contraction flow region, the third interconnecting piece of the first connecting tube, the 4th interconnecting piece described in the first contraction flow region relative proximity
It is relatively distant from the third interconnecting piece of first connecting tube, the diameter of first contraction flow region is from the 4th interconnecting piece towards described
The third interconnecting piece of first connecting tube reduces when extending, and the inner wall of the 4th interconnecting piece is welded with the outer wall of first auxiliary section
Fixation is connect, the axial direction in first auxiliary section, at least partly described first contraction flow region is located at the one of the first port
Side.
4. muffler assembly according to claim 1 or 2, which is characterized in that the first adapter further includes the second receipts
Contracting portion, the axial direction in the first auxiliary section, second contraction flow region are set to first auxiliary section and described first and extend
Between portion, the internal diameter of first auxiliary section is more than the internal diameter of first extension, and the diameter of second contraction flow region is from institute
Reduce when stating the first auxiliary section towards first extension, the inner wall of first auxiliary section is outer with the 4th interconnecting piece
Wall is welded and fixed, and the axis of first extension is generally linear, and the outer diameter of first extension is roughly equal.
5. muffler assembly according to claim 3, which is characterized in that first extension is from first auxiliary section
The big direction for showing the axis far from first auxiliary section extends, and the extending direction of first extension is matched with described first
The axial direction in conjunction portion is substantially vertical, and first auxiliary section and the inner wall of the 4th interconnecting piece are welded and fixed, at least partly
The end wall of first extension and the 4th interconnecting piece is welded and fixed, and the outer diameter of first extension is greater than or equal to institute
State the outer diameter of the 4th interconnecting piece, the internal diameter of first extension is greater than or equal to the internal diameter of first auxiliary section, and described the
The substantially axis of one auxiliary section is straight line, and the internal diameter of first auxiliary section is roughly equal.
6. muffler assembly according to claim 3, which is characterized in that first extension includes at least first and extends
Section, the axis direction that first auxiliary section is shown greatly in first extended segment extend, and the axis of first extended segment is substantially
It is overlapped with the axis of first auxiliary section, the inner cavity of first extended segment is connected to the inner cavity of first auxiliary section, institute
The outer diameter for stating the first extended segment is roughly equal, and the outer diameter of first extended segment is greater than or equal to the outer of first auxiliary section
Diameter, the second port are set to first extended segment；
Or first extension further includes the second extended segment and third extended segment, second extended segment extends from described first
Section is smoothly extended with arc axis, and the third extended segment is smoothly extended from second extended segment with straight axis, and described first
Roughly same outer diameter for extended segment, second extended segment and the third extended segment；Or first extension further includes
Two extended segments and third extended segment, second extended segment show greatly the axis of first auxiliary section from first extended segment
Direction extends, and the diameter of second extended segment gradually increases, and the third extended segment is from second extended segment with straight axis
Smooth to extend, the diameter of the third extended segment is more than the diameter of first extended segment；The diameter of the third extended segment is big
Cause equal, the axis of the third extended segment is generally linear, and the second port is set to the third extended segment.
7. muffler assembly according to claim 6, which is characterized in that first extension further includes the first connection
Section, the outer diameter of first extended segment are more than the outer diameter of first auxiliary section, and first linkage section coordinates from described first
Portion extends towards first extended segment, and the extending direction of first linkage section and the axis direction of first auxiliary section hang down
Directly, the end wall of the 4th interconnecting piece described at least partly described first linkage section be welded and fixed；Or first linkage section includes
First segmental arc and the second segmental arc, first segmental arc show greatly the axis far from first auxiliary section from first auxiliary section
Direction extend, the direction that second segmental arc shows greatly neighbouring first auxiliary section axis from first segmental arc extends to
First extended segment, first linkage section show greatly the axisymmetrical of first auxiliary section, and at least partly described first
Segmental arc and the end wall of the 4th interconnecting piece are welded and fixed.
8. according to any muffler assemblies of claim 1-7, which is characterized in that first auxiliary section or the described 4th
Interconnecting piece includes the first protrusion and the first smooth area, the relatively described first smooth area protrusion of first protrusion, described first
The circumferential direction of auxiliary section or the 4th interconnecting piece, first protrusion and first smoothing interval are every setting, adjacent institute
State first protrusion do not intersect, the axial direction in first auxiliary section, it is described first protrusion first auxiliary section or
The extension track of the first connecting portion is substantially parallel with the axial direction of the first auxiliary section；
Or first auxiliary section or the 4th interconnecting piece include the first groove and the first smooth area, the first groove phase
It is recessed to first smooth area, in first auxiliary section or the circumferential direction of the first connecting portion, first groove
With first smoothing interval every setting, the axial direction in first auxiliary section, first groove is matched described first
Conjunction portion is substantially parallel with the axial direction of the first auxiliary section in the extension track of the 4th interconnecting piece.
9. muffler assembly according to claim 8, which is characterized in that the third interconnecting piece includes First portion and
Two portions, in the axial direction of the first connecting portion, the length in second portion is more than the length in the First portion, institute
Relatively described second portion of First portion is stated adjacent to the second connecting portion, the outer diameter in the First portion is less than described second
The outer diameter in portion, second portion are welded and fixed with the first connecting portion；And/or the first connecting portion further includes third platform
Portion and the 4th portion, the third interconnecting piece is welded and fixed with the 4th portion, in the axial direction side of the first connecting portion
To adjacent to the second connecting portion, at least partly third platform portion is set in relatively described 4th portion of third platform portion
Between the third interconnecting piece and the second connecting portion.
10. muffler assembly according to claim 9, third platform portion and the 4th portion show greatly described first
The axisymmetrical of interconnecting piece, the internal diameter in third platform portion is less than the internal diameter in the 4th portion, in the first connecting portion
Axial direction, the length in the 4th portion are more than the length of the third connection portion, at least partly described 4th position
Between third platform portion and the third interconnecting piece；
Or the first connecting portion includes third platform portion, the 4th portion and the 5th portion, third platform portion, the 4th portion and
The axisymmetrical of the first connecting portion is shown greatly in five portions, and the 4th portion is welded and fixed with the third interconnecting piece,
The axial direction of the first connecting portion, relatively described 4th portion of third platform portion are described adjacent to the second connecting portion
5th portion is set between third platform portion and the third interconnecting piece, and the length in the 4th portion is greater than or equal to institute
The length of third interconnecting piece is stated, the internal diameter in the 5th portion is more than the internal diameter in third platform portion and/or the 4th portion.
11. muffler assembly according to claim 10, which is characterized in that the third interconnecting piece or first connection
Portion includes the second protrusion and the second smooth area, and the relatively described second smooth area protrusion of second protrusion is connected in the third
The circumferential direction of portion or the first connecting portion, first protrusion and first smoothing interval are every setting, and adjacent described the
Two protrusions are not intersected, and in the axial direction of the first connecting portion, second protrusion is in the third interconnecting piece or described the
The extension track of one interconnecting piece is substantially parallel with the axial direction of the first connecting portion；
Or the third interconnecting piece or the first connecting portion include the second groove and the second smooth area, the second groove phase
To second smooth area be recessed, the third interconnecting piece or in the circumferential direction of the first connecting portion, described second it is recessed
Slot and second smoothing interval are every setting, and in the axial direction of the first connecting portion, first groove is described
The extension track of three interconnecting pieces or the first connecting portion is substantially parallel with the axial direction of the first auxiliary section.
12. according to the muffler assembly described in claim 1-11, which is characterized in that the material of the first adapter includes purple
The material of copper, the muffler and/or first connecting tube includes stainless steel；Weld first connecting tube and described first
The equipment of adapter includes at least at least continuous tunnel furnace, vacuum welding chamber or gas shielded welding room or welding case；For welding
It states the first connecting tube and the fusing point of the solder of the first adapter is not less than 980 degrees Celsius.
13. according to any muffler assemblies of claim 1-12, which is characterized in that the muffler assembly further includes the
Two adapters, second adapter include the second auxiliary section and the second extension, and second auxiliary section connects with described second
Socket part is welded and fixed, and second cooperation is located at the both sides of the second connecting portion end wall with second extension；
Or the muffler assembly further includes the second connecting tube and the second adapter, second adapter includes the second auxiliary section
With the second extension, first end and the second connecting portion of second connecting tube are welded and fixed, second connecting tube
Second end is welded and fixed with second auxiliary section, and second auxiliary section is located substantially at the second port of second connecting tube
Side, second extension is located substantially at the other side of the port of the second end of second connecting tube；
Or the muffler assembly further includes the second connecting tube, the second adapter and third adapter, the second adapter packet
The second auxiliary section and the second extension are included, the third adapter includes at least third auxiliary section, the third auxiliary section and institute
Second connecting portion to be stated to be welded and fixed, the first end of second connecting tube is welded and fixed with the third auxiliary section, and described second
The second end of connecting tube is welded and fixed with second auxiliary section, and second auxiliary section and second extension are located substantially at
The both sides of the second end port of second connecting tube.
14. according to the muffler assembly described in claim 1-13, which is characterized in that the material of second connecting tube includes not
Become rusty steel, and the material of second adapter includes red copper；Weld the muffler assembly equipment include at least at least continuous tunnel furnace,
Vacuum welding chamber or gas shielded welding room or welding case；The fusing point for welding the solder of the muffler assembly is taken the photograph not less than 980
Family name's degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710248060.9A CN108730665A (en) | 2017-04-17 | 2017-04-17 | A kind of muffler assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710248060.9A CN108730665A (en) | 2017-04-17 | 2017-04-17 | A kind of muffler assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108730665A true CN108730665A (en) | 2018-11-02 |
Family
ID=63923884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710248060.9A Pending CN108730665A (en) | 2017-04-17 | 2017-04-17 | A kind of muffler assembly |
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| Country | Link |
|---|---|
| CN (1) | CN108730665A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440547A (en) * | 2018-12-21 | 2019-03-08 | 福州大学 | High-speed rail tunnel exit denoising structure |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2276528A1 (en) * | 1974-06-28 | 1976-01-23 | Anvar | Joining tubes by soldering or brazing - using connector sleeve contg. internal rings of solder- or brazing- material |
| CN2445166Y (en) * | 2000-09-26 | 2001-08-29 | 上海奥申机械有限公司 | Pipeline suitable for different metal welding |
| CN102853710A (en) * | 2011-07-01 | 2013-01-02 | 广东万和新电气股份有限公司 | Connection method for copper-aluminum heat exchanger of gas water heater |
| CN202992436U (en) * | 2012-12-09 | 2013-06-12 | 浙江盾安热工科技有限公司 | Copper and aluminum joint structure of heat exchanger |
| CN103506807A (en) * | 2012-06-21 | 2014-01-15 | 浙江三花制冷集团有限公司 | Method for manufacturing silencer of split-type structure |
| CN103791196A (en) * | 2013-10-10 | 2014-05-14 | 浙江三花制冷集团有限公司 | Fluid storage muffler |
| CN203718206U (en) * | 2014-03-03 | 2014-07-16 | 温州联发法兰管件有限公司 | Pipe flange |
| CN204026026U (en) * | 2014-06-09 | 2014-12-17 | 嵊州市新起点焊接科技有限公司 | A kind of baffler |
| CN204226888U (en) * | 2014-10-29 | 2015-03-25 | 广州华凌制冷设备有限公司 | For the pipeline connection part of air conditioner |
| CN204934897U (en) * | 2015-09-02 | 2016-01-06 | 何珠华 | The electric resistance welding structure of pipe fitting and housing |
| CN206019448U (en) * | 2016-05-31 | 2017-03-15 | 杭州三花微通道换热器有限公司 | pipeline connecting device, pipeline assembly and heat exchanger |
| CN207179025U (en) * | 2017-04-17 | 2018-04-03 | 新昌县四通机电有限公司 | A kind of muffler assembly |
-
2017
- 2017-04-17 CN CN201710248060.9A patent/CN108730665A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2276528A1 (en) * | 1974-06-28 | 1976-01-23 | Anvar | Joining tubes by soldering or brazing - using connector sleeve contg. internal rings of solder- or brazing- material |
| CN2445166Y (en) * | 2000-09-26 | 2001-08-29 | 上海奥申机械有限公司 | Pipeline suitable for different metal welding |
| CN102853710A (en) * | 2011-07-01 | 2013-01-02 | 广东万和新电气股份有限公司 | Connection method for copper-aluminum heat exchanger of gas water heater |
| CN103506807A (en) * | 2012-06-21 | 2014-01-15 | 浙江三花制冷集团有限公司 | Method for manufacturing silencer of split-type structure |
| CN202992436U (en) * | 2012-12-09 | 2013-06-12 | 浙江盾安热工科技有限公司 | Copper and aluminum joint structure of heat exchanger |
| CN103791196A (en) * | 2013-10-10 | 2014-05-14 | 浙江三花制冷集团有限公司 | Fluid storage muffler |
| CN203718206U (en) * | 2014-03-03 | 2014-07-16 | 温州联发法兰管件有限公司 | Pipe flange |
| CN204026026U (en) * | 2014-06-09 | 2014-12-17 | 嵊州市新起点焊接科技有限公司 | A kind of baffler |
| CN204226888U (en) * | 2014-10-29 | 2015-03-25 | 广州华凌制冷设备有限公司 | For the pipeline connection part of air conditioner |
| CN204934897U (en) * | 2015-09-02 | 2016-01-06 | 何珠华 | The electric resistance welding structure of pipe fitting and housing |
| CN206019448U (en) * | 2016-05-31 | 2017-03-15 | 杭州三花微通道换热器有限公司 | pipeline connecting device, pipeline assembly and heat exchanger |
| CN207179025U (en) * | 2017-04-17 | 2018-04-03 | 新昌县四通机电有限公司 | A kind of muffler assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440547A (en) * | 2018-12-21 | 2019-03-08 | 福州大学 | High-speed rail tunnel exit denoising structure |
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